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Electric power in watts (W) to electric current in amps (A) calculator. Amps to watts calculator . * Use e for scientific notation. E.g: 5e3, 4e-8, 1.45e12. Watt (W) is a unit of power. Power is the rate of energy usage per time unit. One watt (W) is equal to one joule (J) per second (S). Ampere (A) is a unit of electric current.
One watt is the power at which the work performed in one second is equal to one joule: 1W = 1J / 1s. In electrical circuits, one Watt is defined as the rate of work when a current of one ampere flows through a conductor which has an electrical potential difference (voltage) of one volt: 1W = 1V * 1A. So what is power?
To convert watts (electrical power) to amps (electrical current) at a fixed voltage, you can use a variation of Watt's Law formula: Power = Current × Voltage (P = IV). By working backwards, we get the equation: amps = watts ÷ volts , which can be used to convert watts to amps.
Use our wattage calculator to calculate the power in watts given voltage, current, or resistance. Plus, see the formulas to calculate wattage.
Power consumption calculator: calculates electric power / voltage / current / resistance. Enter 2 values to get the other values and press the Calculate button: Voltage (V) calculation from current (I) and resistance (R): V(V) = I(A) × R(Ω) Complex power (S) calculation from voltage (V) and current (I):
How to Convert Amps and Ohms to Watts. You can also convert amps to watts using circuit resistance with this formula: P (W) = I (A) 2 × R (Ω) The power P in watts is equal to the product of the square of the current I in amps and the resistance R in ohms.
Convert watts to amps for DC and single or three-phase AC circuits, plus learn several formulas for watt to amp electrical conversions.
